<template>
    <div class="app-container">
        <!--顶部 Header 区域 -->
        <mt-header fixed title="首页">
			<span  slot="left" @click="goBack" v-show="flag">
				<mt-button icon="back">返回</mt-button>
			</span>
		</mt-header>

        <!-- 中间的路由 router-view 区域 -->
		<transition>
			<router-view></router-view>
		</transition>
        <!-- 底部 Tabbar 区域 -->
        <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item-1" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item-1" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item-1" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart">
                    <span class="mui-badge" id="badge">{{ $store.getters.getAllCount }}</span>
                </span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item-1" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
    </div>
</template>

<script>
	export default {
		data() {
			return {
				flag:false
			}
		},
		created() {
			this.flag = this.$route.path == '/home' ? false : true;
		},
		methods: {
			goBack(){//点击后退
				this.$router.go(-1);
			}
		},
		watch: {
			'$route.path':function(newVal){
				if(newVal == '/home'){
					this.flag = false
				}else{
					this.flag = true
				}
			}
		},
	}
</script>

<style lang="scss" scoped>
	.mint-header{
		z-index: 99;//防止被覆盖
	}
	.app-container{
		padding-top: 40px;//顶高
		padding-bottom: 50px;//底高
		overflow-x: hidden;//页面切换解决飘移问题
	}

	.v-enter{
		opacity: 0;
		transform: translateX(100%);
	}

	.v-leave-to{
		opacity: 0;
		transform: translateX(-100%);
		position:absolute;//页面切换解决数据上移
	}

	.v-enter-active,
	.v-leave-active{
		transition: all 0.4s ease;
	}

	//改类名,解决Tabbar点击无法切换的问题
	.mui-bar-tab .mui-tab-item-1.mui-active {
		color: #007aff;
	}
	.mui-bar-tab .mui-tab-item-1 {
		display: table-cell;
		overflow: hidden;
		width: 1%;
		height: 50px;
		text-align: center;
		vertical-align: middle;
		white-space: nowrap;
		text-overflow: ellipsis;
		color: #929292;
	}
	.mui-bar-tab .mui-tab-item-1 .mui-icon {
		top: 3px;
		width: 24px;
		height: 24px;
		padding-top: 0;
		padding-bottom: 0;
	}
	.mui-bar-tab .mui-tab-item-1 .mui-icon~.mui-tab-label {
		font-size: 11px;
		display: block;
		overflow: hidden;
		text-overflow: ellipsis;
	}
</style>
